Cover tips
If you are going to cover your vehicle outside, note the following:
1. You get what you pay for. A good multilayer cover for a truck the size of the Titan will not be cheap. I bet a fitted cover made from Evolution fabric could run between $350 and $450. The multilayer fabrics breath allowing moisture to pass up through the fabric. Check out California Car Cover and do a search on Evolution 4 covers in yahoo or google.
2. Don't ever put a cover on a dirty vehicle, you will end up with a scratched truck.
3. If it exposed to the elements, even a good cover will deteriorate over time.